EP3067900A4 - Rare earth permanent magnet and method for manufacturing rare earth permanent magnet - Google Patents

Rare earth permanent magnet and method for manufacturing rare earth permanent magnet Download PDF

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Publication number
EP3067900A4
EP3067900A4 EP14860236.0A EP14860236A EP3067900A4 EP 3067900 A4 EP3067900 A4 EP 3067900A4 EP 14860236 A EP14860236 A EP 14860236A EP 3067900 A4 EP3067900 A4 EP 3067900A4
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
rare earth
earth permanent
manufacturing
manufacturing rare
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14860236.0A
Other languages
German (de)
French (fr)
Other versions
EP3067900A1 (en
EP3067900B1 (en
Inventor
Haruki Eguchi
Isao Nakanowatari
Natsuki Yoneyama
Hidekazu TOMONO
Hiroo Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
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Filing date
Publication date
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Publication of EP3067900A1 publication Critical patent/EP3067900A1/en
Publication of EP3067900A4 publication Critical patent/EP3067900A4/en
Application granted granted Critical
Publication of EP3067900B1 publication Critical patent/EP3067900B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/007—Heat treatment of ferrous alloys containing Co
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP14860236.0A 2013-11-05 2014-11-04 Rare earth permanent magnet and method for manufacturing rare earth permanent magnet Active EP3067900B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2013229783 2013-11-05
JP2013229786 2013-11-05
JP2014002050 2014-01-08
JP2014002051 2014-01-08
JP2014110669 2014-05-28
PCT/JP2014/079183 WO2015068681A1 (en) 2013-11-05 2014-11-04 Rare earth permanent magnet and method for manufacturing rare earth permanent magnet

Publications (3)

Publication Number Publication Date
EP3067900A1 EP3067900A1 (en) 2016-09-14
EP3067900A4 true EP3067900A4 (en) 2017-08-02
EP3067900B1 EP3067900B1 (en) 2020-06-10

Family

ID=53041458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14860236.0A Active EP3067900B1 (en) 2013-11-05 2014-11-04 Rare earth permanent magnet and method for manufacturing rare earth permanent magnet

Country Status (7)

Country Link
US (1) US10629343B2 (en)
EP (1) EP3067900B1 (en)
JP (1) JP6451643B2 (en)
KR (1) KR101936174B1 (en)
CN (2) CN109887697B (en)
AU (1) AU2014344917B2 (en)
WO (1) WO2015068681A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6554766B2 (en) * 2014-08-12 2019-08-07 Tdk株式会社 permanent magnet
KR20180025844A (en) * 2015-04-30 2018-03-09 가부시키가이샤 아이에이치아이 Manufacturing method of rare earth permanent magnet and rare earth permanent magnet
JP6852351B2 (en) * 2016-10-28 2021-03-31 株式会社Ihi Manufacturing method of rare earth permanent magnets
CN106673148B (en) * 2017-01-19 2019-03-29 万明蓉 A kind of high efficient magnetizing device
CN106920614B (en) * 2017-03-02 2019-01-18 沈阳寰博磁电科技有限公司 A kind of preparation method of high magnetic factor sintered NdFeB
KR102092327B1 (en) 2017-11-28 2020-03-23 주식회사 엘지화학 Manufacturing method of magnetic powder and magnetic powder
JP7073842B2 (en) * 2018-03-28 2022-05-24 住友金属鉱山株式会社 Composition determination method, composition determination device
KR102187561B1 (en) 2019-10-25 2020-12-07 한국생산기술연구원 Method for manufacturing nd-fe-b group permanent magnet containing titanium
KR102333257B1 (en) * 2020-10-16 2021-12-01 한양대학교 에리카산학협력단 Method for producing magnetic powder
KR20230170312A (en) 2022-06-10 2023-12-19 문수민 Food waste moisture absorbing pad

Citations (2)

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EP1462531A2 (en) * 2003-03-27 2004-09-29 TDK Corporation R-T-B system rare earth permanent magnet
JP2005320628A (en) * 2004-04-07 2005-11-17 Showa Denko Kk Alloy slug for r-t-b-based sintered magnet, manufacturing method therefor and magnet

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CA1271394A (en) * 1985-02-25 1990-07-10 Karen S. Canavan Enhanced remanence permanent magnetic alloy and bodies thereof and method of preparing same
US5641363A (en) * 1993-12-27 1997-06-24 Tdk Corporation Sintered magnet and method for making
JPH118109A (en) * 1997-04-21 1999-01-12 Shin Etsu Chem Co Ltd Rare earth permanent magnet material and its manufacture
US5976271A (en) 1997-04-21 1999-11-02 Shin-Etsu Chemical Co., Ltd. Method for the preparation of rare earth based anisotropic permanent magnet
JP2001217112A (en) * 2000-01-31 2001-08-10 Hitachi Metals Ltd R-t-b sintered magnet
JP2002038245A (en) * 2000-07-27 2002-02-06 Hitachi Metals Ltd Rare earth alloy powder for rermanent magnet and method for manufacturing rare earth permanent magnet
JP2006041507A (en) 2001-03-01 2006-02-09 Tdk Corp Sintered magnet
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Publication number Priority date Publication date Assignee Title
EP1462531A2 (en) * 2003-03-27 2004-09-29 TDK Corporation R-T-B system rare earth permanent magnet
JP2005320628A (en) * 2004-04-07 2005-11-17 Showa Denko Kk Alloy slug for r-t-b-based sintered magnet, manufacturing method therefor and magnet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SAGAWA M ET AL: "ND-FE-B PERMANENT MAGNET MATERIALS", JAPANESE JOURNAL OF APPLIED PHYSICS, JAPAN SOCIETY OF APPLIED PHYSICS, JP, vol. 26, no. 6, 1 June 1987 (1987-06-01), pages 785 - 800, XP000764900, ISSN: 0021-4922, DOI: 10.1143/JJAP.26.785 *
See also references of WO2015068681A1 *

Also Published As

Publication number Publication date
KR101936174B1 (en) 2019-01-08
AU2014344917A1 (en) 2016-05-26
AU2014344917B2 (en) 2018-03-22
CN105706190A (en) 2016-06-22
JPWO2015068681A1 (en) 2017-03-09
EP3067900A1 (en) 2016-09-14
WO2015068681A1 (en) 2015-05-14
US20160322135A1 (en) 2016-11-03
CN109887697A (en) 2019-06-14
JP6451643B2 (en) 2019-01-16
EP3067900B1 (en) 2020-06-10
KR20160078979A (en) 2016-07-05
CN105706190B (en) 2019-05-10
US10629343B2 (en) 2020-04-21
CN109887697B (en) 2021-07-20

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